| Perpendicular Exchange Coupling in TbFeCo/FePt Bilayer Films |
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| 作者姓名： | 查超麟 张贻松 马斌 张宗芝 金庆原 干福熹 刘要稳 高铁仁 |
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| 作者单位： | [1]State Key Laboratory for Advanced Photonic Materials and Devices, and Department of Optical Science and Engineering, Fudan University, Shanghai 200433 [2]Department of Physics, Tongji University, Shanghai 200092 [3]Department of Physics, Fudan University, Shanghai 200433 |
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| 基金项目： | Supported by the National Natural Science Foundation under Grant Nos 60490290, 10404019, and 10374019, the Science and Technology Committee of Shanghai under Grant No 04D214001, and the Ministry of Education of China. |
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| 摘 要： |
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| 关 键 词： | 正交交换耦合 TbFeCo/FePt双分子层薄膜 薄膜物理学 薄膜平面 |
| 收稿时间： | 2005-12-05 |
| 修稿时间： | 2005-12-05 |
Perpendicular Exchange Coupling in TbFeCo/FePt Bilayer Films |
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| ZHA Chao-Lin, ZHANG Yi-Song, MA Bin, ZHANG Zong-Zhi, JIN Qing-Yuan, GAN Pu-Xi, LIU Yao-Wen, GAO Tie-Ren.Perpendicular Exchange Coupling in TbFeCo/FePt Bilayer Films[J].Chinese Physics Letters,2006,23(4):978-981. |
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| Authors: | ZHA Chao-Lin ZHANG Yi-Song MA Bin ZHANG Zong-Zhi JIN Qing-Yuan GAN Pu-Xi LIU Yao-Wen GAO Tie-Ren |
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| Abstract: | We investigate the structure and exchange coupling in TbFeCo/FePt bilayer films. It is found that FePt has the L10 structure and the easy axis of the FePt film is perpendicular to the film plane. Results of the vibrating sample magnetometer and the magneto-optical Kerr effect measurements show a strong perpendicular exchange coupling between the ferrimagnetic TbFeCo layer and the hard ferromagnetic FePt layer. The magnetization direction of each layer and the process of magnetization reversal are discussed in detail. The switching field dependence on the exchange coupling has been modelled by micromagnetic simulation and the interlayer coupling constant is about -0.9 erg/cm^2 according to this simulation. |
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